Storage bag



FIG. 1 is a top, front, left perspective view of a storage bag showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines within the shaded area represent features that form no part of the claimed design. 

CLAIM The ornamental design for a storage bag, as shown and described. 